I don't know California law, but...
Do you have an actual lease or are you a month-to-month renter? If you have a signed and valid lease you are probably ok until it expires. If you are month-to-month then they are well within their rights to give you thirty days notice and expect you out at the end of the 30 days.
If you knew about the conversion of the apartments into condos before moving in you are going to be out of luck.
I would expect no relocation assistance.
You've lived there for almost 2 years knowing this was going to happen and now that it is happening you are surprised? Really?
Civil law=Money damages (usually)
Criminal Law=Imprisonment and Fines (usually)
Civil law=Private Citizens sue (usually)
Criminal=Government or state sues (usually)
I place usually because there are exceptions to those, private citizens can sometime sue as private attorney generals and there are additional remedies.
One can give rise to both. Drunk driver kills someone. Civil suit for wrongful death and criminal for manslaughter. Another example (O.J.Simpson case) He won the criminal trial and lost the civil suit) Because the degree of evidence is more likely than not in a civil cases and in a criminal case it is beyond a releasable doubt. In some special cases it is clear and convincing evidence (fraud cases), which is lower than reasonable doubt, but higher than a preponderance (more likely than not) of the evidence